CN101506719A - Backlight unit and display apparatus having the same - Google Patents

Backlight unit and display apparatus having the same Download PDF

Info

Publication number
CN101506719A
CN101506719A CNA2007800308699A CN200780030869A CN101506719A CN 101506719 A CN101506719 A CN 101506719A CN A2007800308699 A CNA2007800308699 A CN A2007800308699A CN 200780030869 A CN200780030869 A CN 200780030869A CN 101506719 A CN101506719 A CN 101506719A
Authority
CN
China
Prior art keywords
light
fixed frame
guide plate
reflection box
light guide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA2007800308699A
Other languages
Chinese (zh)
Other versions
CN101506719B (en
Inventor
金在洪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Display Co Ltd
Original Assignee
LG Innotek Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Innotek Co Ltd filed Critical LG Innotek Co Ltd
Publication of CN101506719A publication Critical patent/CN101506719A/en
Application granted granted Critical
Publication of CN101506719B publication Critical patent/CN101506719B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133605—Direct backlight including specially adapted reflectors

Abstract

Disclosed are a backlight unit and a display apparatus having the same. The backlight unit comprises a light guide plate receiving light and outputting the light, a light emitting unit comprised at an one end portion of the light guide plate, a fixing frame comprising an opened interior, in which the light emitting unit and the light guide plate are comprised in the opened interior, and a reflection frame comprised at an outer side of the fixing frame and reflecting leaked light.

Description

Back light unit and have the display device of back light unit
Technical field
Embodiment relates to a kind of back light unit and has the display device of this back light unit.
Background technology
Display device comprises the Plasmia indicating panel (PDP) of cathode ray tube (CRT), the LCD (LCD) of using electrooptical effect, using gases discharge and the electroluminescent display (ELD) that uses electroluminescent effect.In these display devices, carry out very actively to the research of LCD.
Because LCD is very favourable at aspects such as miniaturization, weight, low-power consumption, panchromatic realizations, so LCD can overcome the shortcoming of CRT and be widely used in various fields.
Because this LCD a kind ofly comes the optical pickup apparatus of display image by control from the light quantity of outside, so the additional external light source that LCD need be such as back light unit.
Summary of the invention
Technical matters
Embodiment provides a kind of display device that need not the back light unit of reflector plate and have this back light unit.
Embodiment provides a kind of can come back light unit that leak light is reflected by using in the reflection box outside, that have reflecting surface of fixed frame, and the display device with this back light unit, wherein liquid crystal panel is connected in fixed frame with light guide plate.
Technical scheme
According to embodiment, a kind of back light unit comprises: light guide plate, and it receives light and exports this light; Luminescence unit, it is comprised in the place, an end of described light guide plate; Fixed frame, it comprises the inside that has mouthful, wherein, described luminescence unit and described light guide plate are comprised in the described inside that has mouthful; And reflection box, it is comprised in the outside of described fixed frame, and reflects the light that is leaked.
According to embodiment, a kind of display device comprises: light guide plate, and it receives light and this light is exported with the form of face light; Luminescence unit, it is comprised in the place, an end of described light guide plate; Fixed frame, it comprises the inside that has mouthful, wherein, described luminescence unit and described light guide plate are comprised in the described inside that has mouthful; Reflection box, it is comprised in the outside of described fixed frame, and reflects the light that is leaked; And liquid crystal panel, it is comprised on the described light guide plate.
Beneficial effect
According to based on the back light unit of embodiment and have the display device of this back light unit, removed the reflector plate of back light unit, make to reduce fabrication tolerance between fixed frame and the reflection box, therefore can reduce the thickness of display device.
In addition, omitted the operation that connects reflector plate, the feasible process that can reduce display device.
Description of drawings
Fig. 1 is the decomposition diagram that illustrates according to the LCD of embodiment;
Fig. 2 be illustrate the LCD shown in Fig. 1 connection status, along the side cross-sectional view of short-axis direction intercepting;
Fig. 3 be illustrate the LCD shown in Fig. 1 connection status, along the side cross-sectional view of long axis direction intercepting;
Fig. 4 illustrates the sectional view that fixed frame among Fig. 1 wherein is connected to the example of reflection box;
Fig. 5 is the figure that wherein forms first example of reflecting surface on reflection box that illustrates according to embodiment; And
Fig. 6 is the figure that wherein forms second example of reflecting surface on reflection box that illustrates according to embodiment.
Specific embodiment
Hereinafter, LCD according to embodiment is described with reference to the accompanying drawings.
Fig. 1 is the decomposition diagram that illustrates according to the LCD of embodiment, Fig. 2 be illustrate the LCD shown in Fig. 1 connection status, along the side cross-sectional view of short-axis direction intercepting, Fig. 3 be illustrate the LCD shown in Fig. 1 connection status, along the side cross-sectional view of long axis direction intercepting.
Referring to figs. 1 through Fig. 3, LCD 100 comprises liquid crystal panel 110 and back light unit 120.
Liquid crystal panel 110 comprises the liquid crystal layer (not shown) that is plugged between upper substrate (not shown) and the infrabasal plate (not shown).For example, can prepare upper substrate, can prepare infrabasal plate by the form of tft array substrate by the form of color filter array substrate.In addition, can prepare upper substrate, can prepare infrabasal plate by the form of color filter array substrate by the form of tft array substrate.In addition, the form of color filter array (COA) structure that can form by wherein color filter and tft array prepares upper substrate or infrabasal plate.In liquid crystal layer, form the unit with respect to being aligned to two transparency electrodes mode at an angle of 90 that parallels with electrode plane according to the longitudinal axis of liquid crystal molecule.In this state, nematic liquid crystal is injected in the unit, so the longitudinal axis of liquid crystal twists 90 ° continuously from an electrode towards another electrode.In an embodiment, as example liquid crystal under TN (twisted-nematic) pattern has been described.Yet, can realize having ecb mode, the liquid crystal panel of ocb mode, IPS pattern or VA pattern, and according to displaying scheme, liquid crystal can also be operated by normal white-black pattern.
Can be at least one the surface attachment polaroid 112 in two surfaces of liquid crystal panel 110, and the penetrating shaft of polaroid 112 that is attached to two surfaces of liquid crystal panel 110 is perpendicular to one another.
Back light unit 120 comprises external light blocking member 130, optical sheet member 140, fixed frame 150, light guide plate 160, luminescence unit 170 and reflection box 180.
External light blocking member 130 is formed in the zone except luminous zone 131, and attached between fixed frame 150 and the liquid crystal panel 110 to prevent that light from leaking into the outside of liquid crystal panel 110.For example can prepare this external light blocking member 130 by the form of double sticky tape.
Optical sheet member 140 can comprise at least one diffusion disk (not shown) or at least one prismatic lens (not shown).Diffusion disk improves the optical uniformity of luminous zone, and prismatic lens comprises horizon prism sheet and vertical prism sheets, and light is poly-to the luminous zone.The screening glass of the protection high point of prism (prism mountain) can also be set on prismatic lens.
Fixed frame 150 can prepare according to the form of the molded structure (comprising plastics) with the inside that has mouth, and light guide plate 160 and luminescence unit 170 are connected in the inside that has mouth.Inner edge around fixed frame 150 is formed with locking projection 151, and light guide plate 160 and luminescence unit 170 easily are connected to fixed frame 150 by locking projection 151.On the outside surface of fixed frame 150, be formed with projection 152.
Light guide plate 160 comprises the reflection graphic patterns (not shown) with predetermined space at its place, bottom surface, to light channeling conduct and the reflection from light receiver 161 incidents, so that this light is launched with the form of face light.Optical sheet member 140 is aligned on the light guide plate 160 of fixed frame 150.
Luminescence unit 170 produces light at an end place of light guide plate 160, and light output is arrived light guide plate 160.Can use a plurality of light emitting diodes (LED) 172 that are installed on the printed circuit board (PCB) (PCB) 171 to prepare this luminescence unit 170.In addition, can use bar-shaped electroluminescent lamp (for example, CCFL) or the combination of bar-shaped electroluminescent lamp and LED prepare luminescence unit 170.
As shown in Figures 2 and 3, reflection box 180 is connected to the outside of fixed frame 150.Reflection box 180 covers the bottom and the sidepiece of fixed frame 150, and the upper surface of reflection box 180 is as reflecting surface 181.This reflection box 180 can comprise the rustless metal with the reflecting surface 181 that forms by coating or deposit reflecting material on the upper surface of reflection box 180.The reflecting surface 181 of reflection box 180 is corresponding with the outside of fixed frame 150, and the light that will leak into the bottom of light guide plate 160 reflects along the liquid crystal panel direction once more.The thickness of reflecting surface 181 is 0.01mm or littler.
Light guide plate 160 and luminescence unit 170 are connected in fixed frame 150, and optical sheet member 140 is aligned on the light guide plate 160, and external light blocking member 130 is attached to the outside of optical sheet member 140.At this moment, reflection box 180 was connected with fixed frame 150 with the contacted while of the outside of fixed frame 150.Can before or after connecting liquid crystal panel 110, connect reflection box 180.In back light unit 120, reflection box 180 is carried out reflection function and is used as the chassis.
Fig. 4 illustrates the sectional view that is connected to the example of reflection box according to the wherein fixed frame of embodiment.
With reference to Fig. 1 and Fig. 4, on the side of fixed frame 150, be formed with projection 152, in the side of reflection box 180, be formed with the hole 182 that projection is used.When being inserted into fixed frame 150 in the reflection box 180, the projection 152 of fixed frame 150 is connected with the hole 182 that the projection of reflection box 180 is used.Therefore, fixed frame 150 can be close to reflection box 180 in a fixed manner.The connectivity scenario of fixed frame 150 and reflection box 180 is not limited to use the syndeton or the connectivity scenario in the hole 182 that projection 152 and projection use.
Reflection box 180 is connected to fixed frame 150 in the outside of being close to fixed frame 150, so that can reflect the light that leaks by the bottom of light guide plate from reflecting surface 181.In addition, the fabrication tolerance between reflection box 180 and the fixed frame 150 is minimized, so can reduce the thickness of LCD100.
In addition, reflection box 180 with the contacted fixed frame 150 that is connected to simultaneously of the outside surface of fixed frame 150 so that whole assembly process is simplified.
Fig. 5 is the figure that wherein forms first example of reflecting surface on reflection box that illustrates according to embodiment.
With reference to Fig. 5, according to the lamination cladding process, reflector plate is attached to the disc (disk) of reflection box 180 by using pair of rolls 120, the side at disc forms reflecting surface 181a thus.The thickness of reflecting surface 181a is 0.01mm or littler.Disc by pressing processing with reflection box 180 bends to desired shape, then it is connected with fixed frame 150 when being close to fixed frame 150.Fig. 6 is the figure that wherein forms second example of reflecting surface on reflection box that illustrates according to embodiment.
With reference to Fig. 6, on reflection box 180, form reflecting surface 181b by ion beam deposition process.According to ion beam deposition process, when being injected in chamber by gas injection hole 220 source gas, the electronics 224 that goes out from material target 222 ionization is launched, and is deposited on then on the side of reflection box 180, forms reflecting surface 181b thus on the bottom surface of reflection box 180.Reflecting surface 181b comprises the high material of light reflectivity (for example, Al, Ag), and this material is deposited as 0.01mm or littler thickness.
In an embodiment, back light unit comprises reflection box.Yet according to the specification of back light unit, reflection box also can be used as add ons and connects.LCD can be applied as the display module of mobile phone or monitor.
Although come embodiment is described with reference to many exemplary embodiments of embodiment, should be appreciated that those skilled in the art can propose to fall into many other modification or the embodiment in the spirit and scope of principle of the present disclosure.
Industrial applicibility
According to the back light unit of embodiment and have the demonstration equipment of this back light unit, removed list backlight The reflector plate of unit, so that can make fabrication tolerance minimumization between fixed frame and the reflection box, so can To reduce to show the thickness of equipment.
In addition, omitted the operation that connects reflector plate, so that can reduce the process of demonstration equipment.
Embodiment provides the LCD of the thin thickness of the existing LCD of Thickness Ratio, so that this LCD can Be applicable to the mobile phone that is tending towards lightening.

Claims (14)

1. back light unit comprises:
Light guide plate, it receives light and exports this light;
Luminescence unit, it is comprised in the place, an end of described light guide plate;
Fixed frame, it comprises the inside that has mouthful, wherein, described luminescence unit and described light guide plate are comprised in the described inside that has mouthful; And
Reflection box, it is comprised in the outside of described fixed frame, and reflects the light that is leaked.
2. back light unit according to claim 1, wherein, described reflection box comprises the chassis of using non-corrosive material.
3. back light unit according to claim 1, wherein, described reflection box is close to the described outside of described fixed frame, and comprises the reflecting surface that the light that leaks by the bottom of described light guide plate is reflected.
4. back light unit according to claim 1, wherein, described reflection box is close to the described outside of described fixed frame, and comprises the reflecting surface that is coated with reflector plate on it or is deposited with reflecting material.
5. back light unit according to claim 4, wherein, the thickness of described reflecting surface is 0.01mm or littler.
6. back light unit according to claim 1, wherein, described fixed frame and described reflection box are formed with the hole that projection and projection are used respectively, so that described fixed frame is connected with described reflection box.
7. back light unit according to claim 1, wherein, described luminescence unit comprises at least one in light emitting diode (LED) and the bar-shaped electroluminescent lamp.
8. display device comprises:
Light guide plate, it receives light and this light is exported with the form of face light;
Luminescence unit, it is comprised in the place, an end of described light guide plate;
Fixed frame, it comprises the inside that has mouthful, wherein, described luminescence unit and described light guide plate are comprised in the described inside that has mouthful;
Reflection box, it is comprised in the outside of described fixed frame, and reflects the light that is leaked; And
Liquid crystal panel, it is on described light guide plate.
9. display device according to claim 8, wherein, described reflection box comprises the chassis, this chassis comprises non-corrosive material.
10. display device according to claim 8, wherein, described reflection box is close to the described outside of described fixed frame, and comprises that the light that will leak by the bottom of described light guide plate reflexes to the reflecting surface of described liquid crystal panel.
11. display device according to claim 8, wherein, described reflection box is close to the described outside of described fixed frame, and comprises the reflecting surface that is coated with reflector plate on it or is deposited with the high material of reflectivity.
12. display device according to claim 11, wherein, the thickness of described reflecting surface is 0.01mm or littler.
13. display device according to claim 8, this display device comprise diffusion disk and prismatic lens on the described light guide plate.
14. display device according to claim 8, wherein, described fixed frame and described reflection box are formed with the hole that projection and projection are used respectively, so that described fixed frame is connected with described reflection box.
CN2007800308699A 2006-08-25 2007-08-16 Backlight unit and display apparatus having the same Active CN101506719B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1020060081305A KR20080018726A (en) 2006-08-25 2006-08-25 Liquid crystal display apparatus
KR1020060081305 2006-08-25
KR10-2006-0081305 2006-08-25
PCT/KR2007/003910 WO2008023900A1 (en) 2006-08-25 2007-08-16 Backlight unit and display apparatus having the same

Publications (2)

Publication Number Publication Date
CN101506719A true CN101506719A (en) 2009-08-12
CN101506719B CN101506719B (en) 2011-05-11

Family

ID=39106960

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2007800308699A Active CN101506719B (en) 2006-08-25 2007-08-16 Backlight unit and display apparatus having the same

Country Status (4)

Country Link
US (1) US8059231B2 (en)
KR (1) KR20080018726A (en)
CN (1) CN101506719B (en)
WO (1) WO2008023900A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103309062A (en) * 2012-03-16 2013-09-18 Lg电子株式会社 Display module and mobile terminal having the same
CN104089254A (en) * 2014-06-17 2014-10-08 北京京东方视讯科技有限公司 Rubber frame, backlight module and display device
CN104763931A (en) * 2015-04-09 2015-07-08 深圳市华星光电技术有限公司 Backlight module and liquid crystal display
CN109564365A (en) * 2016-08-09 2019-04-02 微软技术许可有限责任公司 Lcd module

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8456586B2 (en) 2009-06-11 2013-06-04 Apple Inc. Portable computer display structures
US8408780B2 (en) * 2009-11-03 2013-04-02 Apple Inc. Portable computer housing with integral display
US8743309B2 (en) 2009-11-10 2014-06-03 Apple Inc. Methods for fabricating display structures
US8941795B2 (en) * 2011-12-20 2015-01-27 Apple Inc. Electronic device with backlit display
US8858025B2 (en) * 2012-03-07 2014-10-14 Lg Innotek Co., Ltd. Lighting device
KR101962127B1 (en) * 2012-03-16 2019-03-26 엘지전자 주식회사 Display module and mobile terminal having it
US11637919B2 (en) 2019-12-03 2023-04-25 Apple Inc. Handheld electronic device
US11503143B2 (en) 2019-12-03 2022-11-15 Apple Inc. Handheld electronic device

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100840235B1 (en) * 2001-08-29 2008-06-20 삼성전자주식회사 Liquid crystal display device
JP3760900B2 (en) * 2001-09-06 2006-03-29 セイコーエプソン株式会社 Light guiding device, electro-optical device, and electronic apparatus
KR100796487B1 (en) * 2001-12-22 2008-01-21 엘지.필립스 엘시디 주식회사 Liquid crystal display
KR100595306B1 (en) * 2001-12-29 2006-07-03 엘지.필립스 엘시디 주식회사 Backlight Device
KR100783619B1 (en) * 2002-06-29 2007-12-07 삼성전자주식회사 Apparatus for lighting, backlight assembly and liquid crystal display having the same
KR20040003713A (en) * 2002-07-03 2004-01-13 삼성전자주식회사 Back light assembly and liquid crystal display device using the same
KR100720426B1 (en) * 2003-02-18 2007-05-22 엘지.필립스 엘시디 주식회사 back light unit
TWI269894B (en) * 2003-06-13 2007-01-01 Toshiba Matsushita Display Tec Planar light source
JP4007340B2 (en) * 2003-09-19 2007-11-14 セイコーエプソン株式会社 Electro-optical device, electronic apparatus, and method of manufacturing electro-optical device
CN100405173C (en) * 2004-03-29 2008-07-23 友达光电股份有限公司 Frame structure for back-light module
JP4125746B2 (en) 2004-09-22 2008-07-30 株式会社フューチャービジョン Backlight device and liquid crystal display device
KR20060088923A (en) 2005-02-02 2006-08-07 삼성전자주식회사 Back light assembly and liquid crystal display apparatus having the same
CN1821852B (en) * 2006-03-28 2010-12-08 友达光电股份有限公司 Loading structure of back light module

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103309062A (en) * 2012-03-16 2013-09-18 Lg电子株式会社 Display module and mobile terminal having the same
US9077791B2 (en) 2012-03-16 2015-07-07 Lg Electronics Inc. Display module and mobile terminal having the same
CN103309062B (en) * 2012-03-16 2016-05-25 Lg电子株式会社 Display module and the mobile terminal with display module
CN104089254A (en) * 2014-06-17 2014-10-08 北京京东方视讯科技有限公司 Rubber frame, backlight module and display device
CN104089254B (en) * 2014-06-17 2016-08-24 北京京东方视讯科技有限公司 One brood lac frame, backlight module and display device
CN104763931A (en) * 2015-04-09 2015-07-08 深圳市华星光电技术有限公司 Backlight module and liquid crystal display
CN109564365A (en) * 2016-08-09 2019-04-02 微软技术许可有限责任公司 Lcd module
CN109564365B (en) * 2016-08-09 2021-10-15 微软技术许可有限责任公司 Liquid crystal display module

Also Published As

Publication number Publication date
US20100238380A1 (en) 2010-09-23
WO2008023900A1 (en) 2008-02-28
CN101506719B (en) 2011-05-11
KR20080018726A (en) 2008-02-28
US8059231B2 (en) 2011-11-15

Similar Documents

Publication Publication Date Title
CN101506719B (en) Backlight unit and display apparatus having the same
EP2058693B1 (en) Display device and information processing device having the same
EP2746841B1 (en) Liquid crystal display device
US8139177B2 (en) Liquid crystal display device
CN210155481U (en) Backlight module, optical fingerprint system under screen, display module and electronic device
US8432525B2 (en) Backlight unit and liquid crystal display device having the same
US11086071B2 (en) Display device
US20060104088A1 (en) Backlight unit
US10613371B2 (en) Liquid crystal display device
CN109725457B (en) Backlight unit and liquid crystal display device including the same
US9121988B2 (en) Back light unit, method of manufacturing the same and liquid crystal display device including the same
US20160062034A1 (en) Display device
US7826005B2 (en) Light source supporting member, display device comprising the same and method thereof
CN105301824A (en) Display device
CN100580522C (en) Liquid crystal display apparatus having light guiding plate
CN100529907C (en) Liquid crystal display module
CN103953893A (en) Dimming unit, backlight module and display device
CN101636684A (en) Liquid crystal display device
US20190196089A1 (en) Display apparatus with backlight unit and method of fabricating backlight unit
CN205028004U (en) Back light module and display device
US20150378203A1 (en) Liquid crystal display panel
US20200319392A1 (en) Light-guiding plate, backlight device, and display apparatus
US11567359B2 (en) Display panel and display apparatus including same
KR101002343B1 (en) method for fabricating of Liquid Crystal Display Device
KR20080018370A (en) Liquid crystal display apparatus

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
ASS Succession or assignment of patent right

Owner name: LEJIN DISPLAY CO., LTD.

Free format text: FORMER OWNER: LG INNOTEK CO., LTD.

Effective date: 20100611

C41 Transfer of patent application or patent right or utility model
TA01 Transfer of patent application right

Effective date of registration: 20100611

Address after: Seoul, South Kerean

Applicant after: LG Display Co., Ltd.

Address before: Seoul, South Kerean

Applicant before: IG Innotek Co., Ltd.

C14 Grant of patent or utility model
GR01 Patent grant